Messages in this thread | | | Subject | Re: [PATCH] reset: socfpga: use arch_initcall for early initialization | From | Philipp Zabel <> | Date | Thu, 09 Oct 2014 11:03:30 +0200 |
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Am Mittwoch, den 08.10.2014, 21:44 -0500 schrieb dinguyen@opensource.altera.com: > From: Dinh Nguyen <dinguyen@opensource.altera.com> > > There are certain drivers that are required to get loaded very early using > arch_initcall. An example of such a driver is the SOCFPGA's FPGA bridge driver. > This driver has to get loaded early because it needs to enable FPGA components > that are connected to the bridge. > > This FPGA bridge driver will using the reset controller API to toggle it's > reset bits, thus, it needs the reset driver to be loaded as early as possible > in order for it to get used properly.
Without knowing the details, this sounds like the wrong approach. Can't the bridge driver return -EPROBE_DEFER until the reset controller is available?
regards Philipp
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